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14 May, 19:15

Prove this theorem indirectly.

Assume you know that the sum of the angles of a triangle equals 180° and a right angle =

90°. Prove that a triangle cannot have two right angles.

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  1. 14 May, 22:22
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    Triangles have three sides. Of which, the angles inside add up to 180°. Now if two angles were 90° there would be no third angle. Meaning this object would just be an open shape.
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